Zotero Plugins Atlas
Plugins / Organising & tags

Merge All Duplicates

by djluigipremium-byte · github.com/djluigipremium-byte/zotero-merge-all-duplicates

Merges every duplicate set in the selected library at once after a single confirmation.

Merge All Duplicates has Atlas grade A (recommended) because every code check came out low. It works with Zotero 7–10. Last checked 6 Nov 2026.

Organising & tags
View source
Downloads a .xpi file (0.01 MB). In Zotero, open Tools → Plugins and install it from the file.
In useAn estimate of how many copies of Zotero have it: Zotero downloads each new version once for every copy that has the plugin, so we count the downloads of its most-downloaded recent release. Rounded. Plugins that update from outside GitHub count low.
12
DownloadsAll-time downloads of its release files from GitHub, counting every update. Installs from elsewhere aren't counted.
12
ReleasesVersions published on GitHub. Everyone who has the plugin downloads each one again, which adds up in Downloads.
1
StarsPeople who starred the repository on GitHub: a rough measure of interest.
0
ContributorsPeople who have committed code to the repository.
1
LicenceThe licence the code is published under, as GitHub reports it.
MIT
A
Atlas gradeRecommended
because every code check came out low
Applies to v1.0.0, released 27 Aug 2026Code checked · not yet tested in a live Zotero
What we found in the codeSets the gradeThe worst finding in these three areas sets the grade.
Code transparencyReadable code; not yet checked against the published sourceThe developer uploaded the release file from the djluigipremium-byte account. We haven't yet checked whether this file matches the public source code.UnknownWe couldn't check this yet.
Updates
Updates come from this project's GitHub repositoryThe update address offers this version
Where your data goesNo web requests foundLowLow concern: normal for plugins that do this job. Listed so you know.
No further detail for this area yet.
Powerful capabilitiesNo powerful capabilities foundLowLow concern: normal for plugins that do this job. Listed so you know.
No further detail for this area yet.
Before you installShown, not gradedFacts to help you decide. They don't change the grade.
Works withZotero 7, 8, 9, 10 · not 11 betaUpdates automatically
Zotero 7 ✓ worksZotero 8 ✓ worksZotero 9 ✓ worksZotero 10 ✓ worksZotero 11 beta ✗ doesn't work
What you'll needNothing extra detectedDetected automatically from its code
No further detail for this area yet.
MaintenanceActive · last release 27 Aug 20261 contributor
No further detail for this area yet.
LanguagesDocumentation in RussianInterface: Bulgarian and English
No further detail for this area yet.
We report what we found in the code. Open any area for the evidence.How we gradeReport a problem

What it does

Written by AI from the README

Merges every duplicate set in the selected library at once after a single confirmation. It keeps the most complete record, fills its empty fields from the others and moves the merged-away items to the trash.

Zotero's duplicate pane merges one set at a time, which is slow for big libraries. Its developer advises backing up your data directory first, since conflicting fields are not chosen by hand.

What you'll need

Detected automatically

We haven't detected any setup requirements. That isn't the same as none: check the developer's README.

Where your data goes

We found: no web requests found.

Other plugins that do this

Matched on what they do

For the same job, work with Zotero 10 and graded A or better. Closest match first.

  • A
    TagWiz

    Bulk-edits tags from the Tools menu or a collection's right-click menu.

    Matches “merge duplicate tags” · 111 downloads · Active · Zotero 7–10
  • A+
    Zoplicate

    Catches duplicates the moment you import and asks whether to keep the new copy, the old one or both, then merges without losing attachments or notes.

    Matches “merge duplicates automatically” · 1.02M downloads · Active · Zotero 9–10
Compare all 3 side by side
How we pick these

By how closely what they do matches this plugin, using descriptions and the phrases people search with. Copies and forks of this plugin are listed under Forks and copies instead. No plugin pays to appear here.

Forks and copies

No forks listed.

The developer's response

The developer hasn't responded. Developers can reply here, and their reply sits next to our findings.I'm the developer

Ratings and reviews

What people who use it say. This is separate from the grade, which is what the code does, and never changes it.

No ratings yet.

Write a review
Your rating of Merge All Duplicates v1.0.0

Your review is public, under the name you give, and published with the directory's data under CC BY 4.0. Links are removed. We never store your IP address: a scrambled code made from it is kept for 30 days to catch fake reviews. Every review is checked before it's published; how fake ones are spotted isn't published, so it can't be gamed.

Install Merge All Duplicates
ARecommended
  1. 1Download the plugin fileDownload v1.0.0.xpi · 0.01 MB
  2. 2In Zotero, open Tools › Plugins
  3. 3Click the gear, choose Install Plugin From File… and pick the file
Step-by-step guide with pictures